/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/

import Component from '../../model/Component';
import {VisualMapOption} from './VisualMapModel';
import {PiecewiseVisualMapOption} from './PiecewiseModel';
import {ContinousVisualMapOption} from './ContinuousModel';

Component.registerSubTypeDefaulter(
    'visualMap', function (option: VisualMapOption) {
    // Compatible with ec2, when splitNumber === 0, continuous visualMap will be used.
    return (
            !option.categories
            && (
                !(
                    (option as PiecewiseVisualMapOption).pieces
                        ? ((option as PiecewiseVisualMapOption)).pieces.length > 0
                        : ((option as PiecewiseVisualMapOption)).splitNumber > 0
                )
                || (option as ContinousVisualMapOption).calculable
            )
        )
        ? 'continuous' : 'piecewise';
});
